Place Value of a Number
Adding Decimals
Estimate Sum or Difference
Vocabulary
Mixed Up Problems
100

What is the value of the 7 in this number:

750,206.25

700,000

100

0.82 + 4.21

5.03

100

79.1 + 32.4

About 110
100

A common way of writing a number with commas separating groups of three digits starting from the right is

Standard Form

100

How do you write 0.06 as a fraction?

6/100

200

What is the value of the 6 in this number?

584.689

6 tenths or 0.6

200

0.26 + 8.3

8.56

200

2.9 + 3.9

About 7

200

A way to write a number using words is

Number Name/Word Form

200

Write this number in expanded form:

865,476.586

800,000 + 60,000 + 5,000 + 400 + 70 + 6 + 0.5 + 0.08 + 0.006

300

What is the value of the 9 in this number?

7,875.097

9 hundredths or 0.09

300

4.98 + 3.02

8.00

300

$12.99 - $3.95

About $9

300

A way to write a number that shows the place value of each digit is

expanded form

300

Adjusting a number to make a computation easier and balancing the adjustment by changing the number is 

Compensation 

400

What is the value of the 1 in this number?

8,597,004.061

1 thousandths or 0.001

400

6.9 + 2.8

9.7

400

418.5 - 23.7

About 400

400

What property states that you can add numbers in any order?

Commutative Property of Addition

400

Compare these decimals. Are they less than, greater than, or equal to each other?

5.643 ( ) 5.675

< (Less Than)

500

What is the relationship between the 7's in this number?

7,573

The first 7 is 100 times as great as the second 7.
500

Tim earned $16 babysitting and $17.50 mowing a lawn. He paid $8.50 for a movie and bought a small popcorn for $1.95. How much money did he make?

$33.50

500

788.9 - 573

About 200

500

What states that you can add numbers that are easy to compute mentally?

Compatible Numbers

500

Tim earned $16 babysitting and $17.50 mowing a lawn. He paid $8.50 for a movie and bought a small popcorn for $1.95. How much money does he have left?

$23.05